(2)
On the panel 25VU, make sure that the APU MASTER SW pushbutton switch is off.
(3)
Make sure that there is a warning notice in the cockpit to tell persons not to start the APU.
(4)
Make sure that hydraulic systems are depressurized
(Ref. TASK 29-00-00-864-001).
(5)
Make sure that the access platform is in position below the APU compartment.
(6)
Make sure that the APU access doors are open (Ref. TASK 52-41-00-010-001).
(7)
Make sure that the LIGHT control switch 11LJ is set to the on position.
Subtask 49-23-16-865-055
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU APU/APU/CTL 2KD L42 121VU APU/ECB/SPLY 1KD L41
4. Procedure
_________ Subtask 49-23-16-420-051
A. Installation of the Sensor
(1)
Apply COMMON GREASE (Material No. 04-012) to the new packing (1).
(2)
Install the new seal (1) on the sensor (2).
(3)
Put the sensor (2) in position on the APU compressor discharge duct.
(4)
Install the sensor (2) with one of the bolts (4).
(5)
Install the bonding lead (5) with the remaining bolt (4) (Ref. TASK 20-28-00-912-004).
(6)
TORQUE the bolts (4) to 40 lbf.in (0.45 m.daN).
(7)
Remove the blanking caps from the electrical connectors.
(8)
Make sure that the electrical connectors are clean and in the correct condition.
(9)
Connect the electrical connector P29 (3) to the sensor (2). Subtask 49-23-16-865-056
B.
Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1KD, 2KD.
Subtask 49-23-16-740-051
C. Do the self-test of the ECB (Ref. TASK 49-00-00-710-005).
5. Close-up
________ Subtask 49-23-16-410-052
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Set the LIGHT control switch 11LJ to the off position.
(3)
Close the APU access doors 315AL, 316AR (Ref. TASK 52-41-00-410-001).
(4)
Remove the access platform(s).
(5)
Remove the warning notice(s). Subtask 49-23-16-860-051
B.
Aircraft Maintenance Configuration
(1) De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
SENSOR - INLET TEMPERATURE/INLET PRESSURE - REMOVAL/INSTALLATION
________________________________________________________________ TASK 49-23-17-000-001 Removal of the Inlet Pressure/Temperature Sensor (8013KM) (APS 3200) WARNING : DO NOT TOUCH THE APU UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS
_______ WHEN YOU DO THE MAINTENANCE TASK(S).
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking caps
No specific circuit breaker(s) safety clip(s)
No specific access platform 2.5 m (8 ft. 2 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
Configuration before Maintenance Action 52-41-00-010-001 Open the APU Doors for Access 49-23-17-991-001 Fig. 401
3. Job Set-up
__________ Subtask 49-23-17-860-051
A. Aircraft Maintenance Configuration
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